Ultra-low Permeable Reservoir Horizontal Well Water Injection Effecttion And Application Of Research Results

Horizontal well technology has been developed has been the development of mature technologies and increase production of conventional means, but in ultra-low permeability reservoir development application or whether it is a relatively limited scale, according to papers in the research at home and abroad to develop the use of horizontal wells in oil fields in low-permeability sandstone based on the combination of Daqing has been the level of development block pattern of development wells practical, in a comprehensive analysis of the current ultra-low permeability reservoir pattern adaptation and development problems, based on reservoir engineering and technology through the application of new progress in research of the special low-permeability reservoir effective drive system and reasonable form of pattern, combined with a means of numerical simulation, economic evaluation of the principle of optimal design for a set of low-permeability reservoir Daqing horizontal well pattern arrangement method. Especially in the sensitivity analysis of reservoir characteristics and non-Darcy flow on effects of water development on the basis of the consideration given to start additional reservoir pressure and the level of harm to the impact of wells and water production capacity of forecasting methods to predict the horizontal well water pressure after the recovery of different effects on the development, research to develop a rational system of water injection and oil fields in East Yushulin block 141 to obtain a better effect for Daqing low permeability reservoir development and effective adjustments development of a new development model and the reference.Daqing through horizontal well suited to block the choice of principles, preferred oil Yushulin Fuyang ultra-low permeable reservoir 141 block of East as a pilot study of the block. And the development of a follow-up analysis of the effect. The results show that the optimal portfolio in accordance with this method of low-Daqing, the deployment of ultra-low permeability reservoir of the horizontal well network well.